In my opinion, yes, it is. grep is fast and versatile. Shell tools in general are relatively simple or at least specialized, and they're built to be composed i

In my opinion, yes, it is. grep is fast and versatile. Shell tools in general are relatively simple or at least specialized, and they're built to be composed in novel/useful ways. The interface between all of these is text, aka data, aka what is arguably the simplest interface.